数学的本质在于它的自由。
The essence of mathematics lies in its freedom.
你不能两次踏入同一条河流。
Sustainable practices are not just good for the planet—they're good for business.
Nothing is impossible, the word itself says I'm possible’!
确保和平的最佳方式是维持大国之间的权力平衡。
勇气是所有美德中最重要的,因为没有勇气,你就无法始终如一地实践其他美德。
The only lies for which we are truly punished are those we tell ourselves.